Pen



Sept. 6, 1938. C, G, GREGORY 2,129,209

PEN

FiledJuly 20, 1936 )Kg 2 0I INVENTOR. 9 i GOO 0 a@ W WS /g my,

Patented Sept- 6, 1938.l

UNITED STATI-is PATENT, OFFICE PEN Carey Garfield Gregory, Los Angeles, Calif. Application July zo, 1936, serial No. 91,585

l 4 Claims. (01.'120-113) My invention relates broadly to writing pens and more particularly to an improved construction of writing pen which is adapted to automatically fill with ink` by a simple dipping operation and feed the ink to the writing pen with relatively infrequent refilling operations.

One of the objects of my invention is to provide a construction of writing pen having storage means for ink adapted to be filled automatically by a simple dipping operation and operating to continuously feed ink to the pen, necessitating only infrequent dipping ofthe pen in the s upply source for replenishing the ink in the storage means.

Another object of my invention is to provide an automatically filling pen structure having a tubular barrel forming a hand grip in which the expansion of air may be controlled in taking up a'quantity of link-for subsequent feed to the writing pen in accordance with writing requirements.

A further object of my invention is to provide a construction of storage feed pen in which the lthermal effects ofthe hand in gripping the pen barrel are compensated by release of pressure caused by expansion-of air in the pen barrel when held in the hand for avoiding ooding out of ink in the storage feed during writing operations.

A still further object of my invention is to provide a construction of storage feed pen having special means for avoiding surplusage of ink either on the pen point or adjacent the pen holder andincreasing the convenience and efflciency in the use of the Writing pen.l

Still another object of my invention is to provide a construction of storage feed pen adapted to be dipped from time to time through a preformed guide carrier in an inkwell, having means coacting with the guide carriervfor draining off any accumulated ink and preventing drip of ink from the pen.

Other and further objects of my invention reside in the construction of storage feed pen having lautomatic air expansion control means as set forth more fully in the 'specification herein- 45 after following by reference to the accompanying drawing in which: y'

Figure 1 is a side elevation of my improved pen showing it inserted in the guide receptacle of an inkwell; Fig. 2 is a fragmentary, top plan 50 View of the forward end-of the pen, parts of the pen being broken away in order to show the arrangement of the storage feed for the pen; Fig. 3 is a central vertical longitudinal section of the forward end of the pen, the feed being shown in'4 55 side elevation; Fig.,4 is a similar view with the feed being shown in section to disclose more specifically, the storage recess'within the` forward end of the feed; Fig. 5 is a transverse vertical sectional view taken on line 5--5 of Fig. 4; Fig. Gris a perspective view'of one form of cy- 5 lindrical plug used in association with my improved pen; Fig. I is a fragmentary side elevation showing a modified form of cylindrical plug for the pen of my invention; Fig. 8 is a perspective view thereof; and Fig. 9 is a front eleva- 10' tion thereof showing more particularly the general formation of the headed end of the cylindrical plug.

My invention is directed to an improved construction of pen in which a storage feed is pro- 15 vided for retaining an adequate amount of ink l by dipping of the pen into an ink well to insure a .continuous writing operation and to insure a. supply of ink for asubstantial period of time for continuous writing operation and making it 20 unnecessary to repeatedly dip the pen into the inkwell at frequent intervals. The pen is provided with a feed having a relatively deep capillary channel or groove formed therein and connected through a tapering passage to the hollow interior section of the tubular barrel of the pen holder. The storage feed receives a suflcient quantity of ink upon each dip operation of the pen to insure a continuous supply of the ink to the pen for a substantial period of time. The amount of ink 30 the storage feed collects is regulated and limited by the capillary action of the channel connected with the storage feed. When the storage feed absorbs ink to the full capacity, any expansion of air in the tubularbarrel of the pen holder 35 which is directly connected at the back of the 4 feed, would normally act upon the ink in` the storage feed and cause the flooding out ofv ink from the storage feed. I' avoid such detrimental flooding action by providing a small pressure re- 40 lease aperture' in the pen barrel. As the air expands in the pen barrel, when the pen is held in the hand, the air is allowed to escape through the pressure release and does not act detrimen- `tally to cause flooding out of the ink. Thus, conslderable latitude is lprovided for allowing the storage feed to collect ink and deliver the required quantity of ink forefllcient writing purposes. By providing a path interconnecting the storage feed reservoir with the pressure release in thetubular barrel of the pen, a uniform amount of ink is collected by the pen for uniform distribution during writing operation 'of the pen.

I provide an annular channel around the section of the plug between the headed end and the forward end ofthe plug. 'This channel is so designed that the lend section will not operate as a capillary or pick up the drip of previous ink which may becollected on the side Vwall oi' the funnel 'forming the pen guide receptacle. In order to further prevent the collection of surplus ink on the end section of the plug, a1

longitudinally extending channel or channels may be cut through the collar onthe headed end of the pen for lessening the amount of ink picked up by the end section when it is rapidly withdrawn from the funnel of the guide receptacle of the ink well. The several features of Zope the pen of my invention including the storage reservoir, the pressure conducting channel, the pressure release, the headed end of the cylindrical plug, the longitudinal channels in the annular collar of the headed end of the cylindrical plug; all coact to insure the eilicient operation of the n. Referring to the drawing in more detail, reference character I designates the pen barrel having a hollow'tubular end section 2, a central hollow tubular nger grip section 3 and a solid end section 4. The solid end section 4 connects with the central tubular finger grip section A3 by means of the plug extension 5 which flts into the tubular end of the central iinger grip section 3. The hollow tubular end section 24 is provided with an annular cylindrical shoulder 6 on the end thereof from which the exterior surface of the hollow tubular end section tapers to a smaller cross-section in a zone indicated generally at 1 from which the diameter of the pen holder gradually increases to the diameter of the central finger grip section indicated at 3. The hollow construction of the pen holder is shown more clearly in Fig. 3, from which it will beseen that the adjoining sections 2 and 3 have a hollow interior shown at 8. A cylindrical plug 3 shown more particularly in Fig. 6 provided with an annular connecting portion I0 frictionally engages the internal bore 3 in the end section 2 of the pen holder, providing'a relatively tight interengaging iit therewith. The cylindrical plug 9 has an annular Vheaded end II as shown more particularly in Fig. 6. The headed end II is formed by the junction of two angularly disposed face portions I2 and I3. The angular disposition of face I2 is less than the angular disposition of face I3, for facilitating the entry of the pen into a funnel shaped guide receptacle for pens such as the funnel guide receptacle shown at I4, in Fig. 1.

The funnel shaped guide receptacle I4 in Fig.

41 is disposed in an angular position through an dips into the pool of ink shown at Igin the ink well I6. It will be observed that an annular cylindrical zone I9 is provided between the headed end II and the annular connecting portion I0. This insuresagainst the capillary movement of ink from the pen point in a path up the pen holder, which might be detrimental in that the writer might get ink on the fingers.

In order to avoid the tendency of capillary action of the ink along lthe plug toward the pen holder, I may provide longitudinallyextending chamois, grooves, or recesses ln the headed end II, as I have illustrated more clearly in Figs. 7, 8 and 9 where the annular headed end is broken into segments, as indicated at 28. The grooves, recesses, or channels 23 between segments 2l allow ink which may tend to move by capillary action toward the pen holder, to drip back into the ink receptacle. v

The cylindrical plug 9 has an internal bore 20 into which the penpoint -Il is secured by means of feed plug 2l. Feed plug 2| is pro- "vided with a multiplicity of laterally extending grooves 22 which serve to collect and retain ink to be fed to the pen point I1 by capillary action. The group of laterally extending grooves 22 are spaced from the central portion of the plug 2I by gaps 22a. I do not/rely, however, upon this method of capillary feed. In addition I provide a relatively deep curved recess 23v in the feed plug 2|, immediately below the nib of the pen. The curved recess 23 is relatively deep and operates as a storage chamber for feeding ink to the pen nib. 'I'he storage feed chamber 23 connects to the interior bore 8 of the pen holder I through a tapered groove 24 in the plug 2|. The tapered groove 24 is provided with a multiplicity of longitudinally extending 'feed grooves 25 by which additional ink may be taken upA by capillary attraction beyond the limits of the capacity of the storage feed reservoir. The groove 24 provides a path for air into the interior of bore 8. The heat of the hand as it grasps the pen barrel at the central section 3 and the end section 2 would normally tend, by

expansive action to nood the ink lout of the duction and operation. -A sumcient quantity of ink is retained in the storage feed reservoir 23 and groove 24 to allow uniform feeding of ink vto the pen nib for'substalntial periods of time,

thus making it unnecessary to make frequent dips of the pen into the ink well. i

While I have described my Qinvention in certain of its preferred embodiments, I desire that it be understood that'modiflcations may be made and that no limitations upon my invention are intended other than may be imposedby the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States is as follows: 1. A dip pen including a pen holder having a hollow barrel portion, a tubular plug secured in the end of said hollow barrel portion, a storage feed plug insertable into the bore of said tubular plug for securing a pen point intermediate said feed plug and the inner wall of said tubular plug with respect to said pen holder, and anannular head on said tubular plug, said annular head having a plurality of longitudinally extending grooves therein for dividing said annular head into segmental portions for obstructing the capillary movement of ink in a direction from the pen point towards the pen holder and allowing discharge of ink collected by the segmental portions of said annular head in dipping-operations.

2. A fountain-feed dip pen including a pen holder having a hollow barrel portion, av tubular plug having a cylindrical wall engaging portion on one end for frictionally engaging the inner wall of the hollow barrel `portion of said pen holder, a headed end on said tubularplug constituted by a pair of inclined faces, the face adjacent theL extreme end of the tubular plug being inclined at a smaller angle with respect to the axis of the tubular plug than the face more remote from the extreme end of the tubular plug, an annular cylindrical zone between said cylindrical wall engaging portion of said tubular plug and said headed end, a feed plug. and means for securing a pen point in writing position intermediate the end of said tubular plug and the exterior surface of said feedfplug, the headed end of said tubular plug having a channel thereinextending from the end of the tubular plug to the annular cylindrical zone intermediate said headed end andsaid cylindrical wall portion for releasing ink collected in said annular cylindrical zone. 4

3. A dip pen holder comprising a tubular body portion, closure means at one end thereof, pen point engaging means at the other end thereof, said pen point engaging means having an ink storage reservoir communicating with the interior of said tubular body portion, said tubular body portion having vmeans for venting the interior aieaaoa thereof for controlling the rate of capillary filling of the pen when dipped in ink and an annular head on said Vclosure means, said annular head having a plurality of longitudinally extending jgrooves therein for dividing said annular head into segmental portions for obstructing the capillary movement of ink in a direction from the `pen point towards the pen holder and allowing discharge of ink collected by the segmental portions of said annular head in dipping operations.

4..'A dip pen comprising a holder, a pen point secured with respect to said holder, an annular head on the end of said holder intermediate said pen point and said holder, a substantially cylin- 

